New posts in Optics

Why are rain clouds darker?

Do rainbows show spectral lines from the sun?

Why does the laser reflect like a semicircle?

Why does the shadow of Io on Jupiter look so big?

Why isn't my calculation that we should be able to see the sun well beyond the observable universe valid?

Why doesn’t a normal window produce an apparent rainbow?

How do photons get into the eyes?

Why does frequency remain unchanged in light refraction but wavelength doesn't?

Polarization lost upon 2nd reflection?

Can we see a point with only one ray or do we need two rays?